Remove all that libvirt\* set of packages, none of them should be installed on a client. The virt-what utility just tells you which virtualization package your guest is running underneath - your case you are apparently on a VMWare virtual machine.

Alternately (if you don't care about getting nested Virtualization working), I found another way to avoid the shutdown issue. I discovered that I could just disable and stop the libvirt-guest service (from the System/Services panel) to avoid the shutdown issue (before I changed the VMware VMs .vmx file).